commit 7419057e
Date:   Thu Sep 22 16:34:14 2016 +0200

    loplugin:unusedmethods in chart2..svx

removed that from
include/vcl/printerinfomanager.hxx
vcl/unx/generic/printer/printerinfomanager.cxx
but not the empty base class implementation from
vcl/null/printerinfomanager.cxx

Change-Id: I9bfd1c77490c70b9bf7a69c93d34bd0249cce64f